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dc.contributor.advisorSumantri, Imam Bagus
dc.contributor.authorSiregar, Imsardin
dc.date.accessioned2025-09-22T07:45:49Z
dc.date.available2025-09-22T07:45:49Z
dc.date.issued2025
dc.identifier.urihttps://repositori.usu.ac.id/handle/123456789/108546
dc.description.abstractBackground: The puguntano plant (Picria fel-terrae Lour.) is a plant with bioactive potential. Its bioactive compounds function as self-defense and are also beneficial to human life, including as a source of antioxidants and as a medicinal ingredient. Objective: The aim of this study was to determine the secondary metabolite compounds and antioxidant activity of ethanol, n-butanol, and chloroform extracts of puguntano leaves (Picria fel-terrae Lour.). Method: The research was conducted descriptive, including sample preparation, preparation of puguntano leaf extract, characterization of simplicia, phytochemical screening of simlicia and extract and determination of antioxidant activity of ethanol, n-butanol, and choloroform extracts of puguntano leaves using the DPPH method (1,1-diphenyl-2-picryhydrazil), then measured using UV-Vis spectrophotometry. Results: The antioxidant activity of the ethanol extract gave an IC50 value of 15.0648 μg/mL with a very strong antioxidant category, the n-butanol extract gave an IC50 volue of 10.3149 μg/mL wiht a very strong antioxidant category, and the chloroform extract gave an IC50 volue of 282.1155 μg/mL with a weak antioxidant categoty. Conclusion: The results of the study indicate tha there are differences in the level of antioxidant activity of ethanol, n-butanol, and chloroform extracts from puguntano leaves (Picria fel-terrae Lour.).en_US
dc.language.isoiden_US
dc.publisherUniversitas Sumatera Utaraen_US
dc.subjectPuguntano (Picria fel-terrae Lour.)en_US
dc.subjectAntioxidanten_US
dc.subjectExtractionen_US
dc.subjectDPPHen_US
dc.subjectUV-Vis spectrophotometryen_US
dc.titlePerbandingan Aktivitas Antioksidan Dari Ekstrak Etanol, N-butanol, dan Kloroform Daun Puguntano (Picria fel-terrae Lour.)en_US
dc.title.alternativeComparison Of Atioxidant Activity Of Ethanol, N-butanol, And Chloroform Extracts Of Puguntano Leaves (Picria fel-terrae Lour.)en_US
dc.typeThesisen_US
dc.identifier.nimNIM181501036
dc.identifier.nidnNIDN0024128204
dc.identifier.kodeprodiKODEPRODI4820#Farmasi
dc.description.pages111 Pagesen_US
dc.description.typeSkripsi Sarjanaen_US
dc.subject.sdgsSDGs 4. Quality Educationen_US


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